EP1501200A3 - Noise filter in a hearing aid - Google Patents

Noise filter in a hearing aid Download PDF

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Publication number
EP1501200A3
EP1501200A3 EP04026906A EP04026906A EP1501200A3 EP 1501200 A3 EP1501200 A3 EP 1501200A3 EP 04026906 A EP04026906 A EP 04026906A EP 04026906 A EP04026906 A EP 04026906A EP 1501200 A3 EP1501200 A3 EP 1501200A3
Authority
EP
European Patent Office
Prior art keywords
hearing aid
noise filter
signal
frequency
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04026906A
Other languages
German (de)
French (fr)
Other versions
EP1501200B1 (en
EP1501200A2 (en
Inventor
Hans-Ueli Roeck
Stefan Daniel Menzl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonova Holding AG
Original Assignee
Phonak AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phonak AG filed Critical Phonak AG
Priority to EP20040026906 priority Critical patent/EP1501200B1/en
Priority to DE200450010063 priority patent/DE502004010063D1/en
Priority to DK04026906T priority patent/DK1501200T3/en
Publication of EP1501200A2 publication Critical patent/EP1501200A2/en
Publication of EP1501200A3 publication Critical patent/EP1501200A3/en
Application granted granted Critical
Publication of EP1501200B1 publication Critical patent/EP1501200B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/061—Reduction of burst noise, e.g. in TDMA systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Filters And Equalizers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

In einem Verfahren zum Filtern von Störsignalen, auftretend mit weitgehendst bekannt gleich bleibender Wiederholfrequenz beim Gebrauch von Hörgeräten wird im oder am Hörgerät die Wiederholfrequenz des Störsignals detektiert und bei Erkennung bekannt gleich bleibender Frequenz wird das Signal mindestens zum erwartet nächsten Zeitpunkt wenigstens teilweise unterdrückt bzw. gedämpft. Die Detektion kann beispielsweise über den Duty-cycle und/oder die Grundfrequenz des Störsignals erfolgen.

Figure 00000001
In a method for filtering interference signals, occurring with the most widely known constant repetition frequency when using hearing aids, the repetition frequency of the interfering signal is detected in and on the hearing aid and known constant frequency detection, the signal is at least partially expected to be suppressed or attenuated next time , The detection can take place, for example, via the duty cycle and / or the fundamental frequency of the interference signal.
Figure 00000001
EP20040026906 2004-11-12 2004-11-12 Noise filter in a hearing aid Active EP1501200B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20040026906 EP1501200B1 (en) 2004-11-12 2004-11-12 Noise filter in a hearing aid
DE200450010063 DE502004010063D1 (en) 2004-11-12 2004-11-12 Noise filter in hearing aids
DK04026906T DK1501200T3 (en) 2004-11-12 2004-11-12 Noise filter in a hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040026906 EP1501200B1 (en) 2004-11-12 2004-11-12 Noise filter in a hearing aid

Publications (3)

Publication Number Publication Date
EP1501200A2 EP1501200A2 (en) 2005-01-26
EP1501200A3 true EP1501200A3 (en) 2005-03-16
EP1501200B1 EP1501200B1 (en) 2009-09-16

Family

ID=33484110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040026906 Active EP1501200B1 (en) 2004-11-12 2004-11-12 Noise filter in a hearing aid

Country Status (3)

Country Link
EP (1) EP1501200B1 (en)
DE (1) DE502004010063D1 (en)
DK (1) DK1501200T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1860914B1 (en) * 2006-05-24 2008-12-03 Phonak AG Hearing assistance system and method of operating the same
US7688991B2 (en) 2006-05-24 2010-03-30 Phonak Ag Hearing assistance system and method of operating the same
ATE509478T1 (en) 2006-12-20 2011-05-15 Phonak Ag HEARING AID SYSTEM AND OPERATING METHOD THEREOF
US20110300874A1 (en) * 2010-06-04 2011-12-08 Apple Inc. System and method for removing tdma audio noise
US8837749B2 (en) 2011-03-09 2014-09-16 Apple Inc. Managing the effect of TDMA noise on audio circuits

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0843427A1 (en) * 1996-10-31 1998-05-20 AB Transistor An arrangement for suppressing harmonic interference in signal transmission
EP0941015A2 (en) * 1998-03-02 1999-09-08 Knowles Electronics, Inc. System for mitigating R.F. interference in hearing aids
US6137888A (en) * 1997-06-02 2000-10-24 Nortel Networks Corporation EM interference canceller in an audio amplifier
EP1104645B1 (en) * 1998-08-13 2003-02-05 Siemens Audiologische Technik GmbH Hearing aid comprising a device for suppressing electromagnetic interference signals and method for suppressing electromagnetic interference signals in hearing aids
US20040053575A1 (en) * 2000-10-25 2004-03-18 Rainer Eckert Portable electronic device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0843427A1 (en) * 1996-10-31 1998-05-20 AB Transistor An arrangement for suppressing harmonic interference in signal transmission
US6137888A (en) * 1997-06-02 2000-10-24 Nortel Networks Corporation EM interference canceller in an audio amplifier
EP0941015A2 (en) * 1998-03-02 1999-09-08 Knowles Electronics, Inc. System for mitigating R.F. interference in hearing aids
EP1104645B1 (en) * 1998-08-13 2003-02-05 Siemens Audiologische Technik GmbH Hearing aid comprising a device for suppressing electromagnetic interference signals and method for suppressing electromagnetic interference signals in hearing aids
US20040053575A1 (en) * 2000-10-25 2004-03-18 Rainer Eckert Portable electronic device

Also Published As

Publication number Publication date
EP1501200B1 (en) 2009-09-16
EP1501200A2 (en) 2005-01-26
DK1501200T3 (en) 2010-01-18
DE502004010063D1 (en) 2009-10-29

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